Four-seat R44 RAVEN II and CLIPPER II helicopters are high performing, reliable, and easy to maintain. R44s have a two-bladed rotor system, T-bar cyclic, streamlined instrument panels, and a crashworthy fuel system. An aluminum monocoque and powder-coated steel tube structure provides a lightweight, yet robust airframe while the aerodynamic fuselage optimizes airspeed and fuel economy. Hydraulically boosted controls eliminate cyclic and collective feedback forces and provide responsive handling. A low tail-rotor tip speed and large cambered tail reduce flyover noise. Raven II and Clipper II helicopters are powered by Lycoming’s IO-540 fuel injected engine. The IO-540 delivers improved altitude performance, increased payload, and eliminates the need for carburetor heat.
R44 Raven II & Clipper II
Specifications
Raven II | Clipper II: Pop-Out Floats | Clipper II: Fixed Floats | |
---|---|---|---|
Engine | Lycoming IO-540, six cylinder, fuel injected | Lycoming IO-54O, six cylinder, fuel injected | Lycoming IO-54O, six cylinder, fuel injected |
Horsepower | Derated to 245 for takeoff and 205 continuous | Derated to 245 for takeoff and 205 continuous | Derated to 245 for takeoff and 205 continuous |
Maximum Gross Weight | 2500 lb (1134 kg) | 2500 lb (1134 kg) | 2500 lb (1134 kg) |
Approximate Empty Weight (including oil & standard avionics) | 1505 lb (683 kg) | 1500 lb (712 kg) | 1570 lb (712 kg) |
Standard Fuel (29.5 gal) | 177 lb (80 kg) | 29.5 gal capacity / 177 lb (80 kg) | 29.5 gallon capacity/177 lb (80 kg) |
Auxiliary Fuel (17.0 gal) | 102 lb (46 kg) | 27.0 gallon capacity / 102 lb (46 kg) | 17.0 Gallon capacity/102 lb (46 kg) |
Pilot, Passengers, and Baggage (with maximum fuel) | 716 lb (325 kg) | 721 lb (327 kg) | 651 lb (295 kg) |
Cruise Speed at Maximum Gross Weight | Up to 109 kts (202 km/h) | Up to 106 kts (196 km/h) | Up to 106 kts (196 km/h) |
Maximum Range (no reserve) | Approximately 300 nm (550 km) | Approximately 300 nm (550 km) | Approximately 300 nm (550 km) |
Hover Ceiling IGE at Maximum Gross Weight | 8950 ft @ 2500 lb | 8950 ft @ 2500 lb | 8950 ft @ 2500 lb |
Hover Ceiling OGE at Maximum Gross Weight | 7500 ft @ 2300 lb | 7500 ft @ 2300 lb | 7500 ft @ 2300 lb |
Rate of Climb | Over 1000 fpm | Over 1000 fpm | Over 1000 fpm |
Maximum Operating Altitude | 14,000 ft | 14,000 ft | 14,000 ft |
Electrical System | 28 volt | 28 volt | 28 volt |